<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<h1>登录成功</h1>

<form action="bb" method="post">
    Go To  BB.html
    <input type="submit" value="提交">
</form>

</body>
</html>